学生标准类
/*
請(qǐng)寫出一個(gè)標(biāo)準(zhǔn)的學(xué)生類(Student)Student:成員變量:name,age,sex構(gòu)造方法:無參構(gòu)造方法,帶三個(gè)參數(shù)的構(gòu)造方法成員方法:A:get/set方法B:把所有成員變量的值輸出的方法(show)*/
class Student3 {private String name;private int age;private String sex;Student3(String name, int age) {}Student3(String name, int age, String sex) {this.name = name;this.age = age;this.sex = sex;}public void setName(String name) {this.name = name;}public void setAge(int age) {this.age = age;}public void setSex(String sex) {this.sex = sex;}public String getName() {return this.name;}public int getAge() {return this.age;}public String getSex() {return this.sex;}}class Student4 extends Student3{//子類定義構(gòu)造器,父類有的子類也要有,接收創(chuàng)建對(duì)象時(shí)候傳遞的參數(shù)Student4(String name,int age,String sex){//傳遞給父類賦值super(name, age,sex);}public void study(){System.out.println(getName()+" "+getAge()+" "+getSex());}
}public class StudentDome{public static void main(String[] args) {//初始賦值Student3 s = new Student3("張三", 18, "女");Student4 st = new Student4(" ", 0, "未知");//后續(xù)賦值st.setName("李四");st.setSex("男");st.setAge(100);st.study();}}
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